More than 2,000 Heathrow security officers to strike for 31 days this summer

At least seven airlines travelling from Heathrow will be affected (Picture: PA)

Heathrow Airport will be hit by 31 days of strikes this summer after security officers voted to escalate their pay dispute.

Industrial action has been announced for almost every weekend from the middle of June to the end of August, affecting Eid al-Fitr and the beginning of the school holidays.

Major disruptions to travel is expected as the strikes will involve more than 2,000 security officers.

British Airways...